JPS5656974A - Spiral casing for water turbine - Google Patents

Spiral casing for water turbine

Info

Publication number
JPS5656974A
JPS5656974A JP13322579A JP13322579A JPS5656974A JP S5656974 A JPS5656974 A JP S5656974A JP 13322579 A JP13322579 A JP 13322579A JP 13322579 A JP13322579 A JP 13322579A JP S5656974 A JPS5656974 A JP S5656974A
Authority
JP
Japan
Prior art keywords
spiral
water
section
stay vanes
vanes
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP13322579A
Other languages
Japanese (ja)
Inventor
Yutaka Kawada
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP13322579A priority Critical patent/JPS5656974A/en
Publication of JPS5656974A publication Critical patent/JPS5656974A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/10—Geometry two-dimensional
    • F05B2250/15—Geometry two-dimensional spiral
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2250/00—Geometry
    • F05B2250/20—Geometry three-dimensional
    • F05B2250/25—Geometry three-dimensional helical
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Abstract

PURPOSE: To improve a water turbine efficiency, by a method wherein a spiral terminal of a water turbine is made open at a spiral starting section.
CONSTITUTION: Most of the water flowing into a spiral casing 1 flows into stay vanes 3. However, because the spiral terinal section 7 is made open to a spiral starting section 8, a water flow not flowing into the stay vanes 3 is fed to the spiral starting section 8 through the force of a kinetic energy in the circumference direction of the fluid at the spiral terminal section 7. This prevents a flow-in water from concentrating to the stay vanes 3 at the spiral starting section and permits the conversion of a flat speed distribution 9 at a casing inlet to a free spiral flow disturbution 10 at an early time, thereby uniformalizing a pressure at the outer circumference of the stay vanes 3. Water flowing into the stay vanes 3 flows into runners through guide vanes 4.
COPYRIGHT: (C)1981,JPO&Japio
JP13322579A 1979-10-16 1979-10-16 Spiral casing for water turbine Pending JPS5656974A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP13322579A JPS5656974A (en) 1979-10-16 1979-10-16 Spiral casing for water turbine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP13322579A JPS5656974A (en) 1979-10-16 1979-10-16 Spiral casing for water turbine

Publications (1)

Publication Number Publication Date
JPS5656974A true JPS5656974A (en) 1981-05-19

Family

ID=15099653

Family Applications (1)

Application Number Title Priority Date Filing Date
JP13322579A Pending JPS5656974A (en) 1979-10-16 1979-10-16 Spiral casing for water turbine

Country Status (1)

Country Link
JP (1) JPS5656974A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58152174A (en) * 1982-03-08 1983-09-09 Mitsubishi Heavy Ind Ltd Spiral casing
CN1300458C (en) * 2002-08-08 2007-02-14 天津大学 Generator by using sea energy of low flow
WO2008141349A2 (en) * 2007-05-18 2008-11-27 Zotloeterer Franz Hydroelectric power station

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250434A (en) * 1975-10-20 1977-04-22 Hitachi Ltd Eddy current casing of the hydraulic machine

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5250434A (en) * 1975-10-20 1977-04-22 Hitachi Ltd Eddy current casing of the hydraulic machine

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58152174A (en) * 1982-03-08 1983-09-09 Mitsubishi Heavy Ind Ltd Spiral casing
CN1300458C (en) * 2002-08-08 2007-02-14 天津大学 Generator by using sea energy of low flow
WO2008141349A2 (en) * 2007-05-18 2008-11-27 Zotloeterer Franz Hydroelectric power station
WO2008141349A3 (en) * 2007-05-18 2009-06-11 Franz Zotloeterer Hydroelectric power station

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